Carrier 48LJD - Manual (Page 5)

Table 1 — Physical Data
BASE UNIT 48 LJE/LJF004 LJD/LJE/LJF005 LJD/LJE/LJF006 LJD/LJE/LJF007
NOMINAL CAPACITY (tons) 3 4 5 6
OPERATING WEIGHT (lb)
Unit 530 540 560 615
Economizer 34 34 34 34
Roof Curb 115 115 115 115
COMPRESSOR Reciprocating Scroil Reciprocating
Quantity 1 1
1
1
Oil (oz) 55 55 70 65
REFRIGERANT TYPE R-22
Operating Charge (Ib-oz) 6-0 7-6 8-3 9-12
CONDENSER FAN Propeiier Type
Quantity...Diameter (in.) 1 ..26.0 1 ..26.0 1...26.0 1 . 26.0
Nominal Cfm 4600 4600 4100 4i00
Motor Hp...Rpm Уз 850 Уз...850 У3...850 Уз . 850
CONDENSER COIL Enhanced Copper Tubes, Aiuminum Lanced Fins
Rows...Fins/in. 1.. 17 2.. 17 2.. 17 2.. 17
Total Face Area (sq ft) 12 25 12.25 12.25 12.25
EVAPORATOR FAN Centrifugai Type
Size (in.) 10 X 10 10 X 10 10 X 10 10 X 10
Type Drive Std Direct Direct Beit Beit
Alt Direct Beit — —
Nominal Cfm 1200 1600 2000 2400
Maximum Continuous Bhp Std 34 .81 1 80 2 40
Alt 81 1 20 — —
Motor Frame Std 48 48 56 56
Alt 48 56 — —
Nominal Rpm High/Low Std 860/845 1080/970 — —
Ait 1080/970 — — —
Fan Rpm Range Std — _
900-1300 1070-1460
Alt — 970-1310 — —
Motor Bearing Type Baii Bali Baii Bail
Maximum Fan Rpm 2100 2100 2100 2100
Motor Pulley Pitch Diameter A/B (in.) Std — — 2 4/3 4 2.8/3.8
Alt — 1 9/2 9 — —
Fan Pulley Pitch Diameter (in.) Std — — 4.5 45
Alt — 3.5 — —
Belt — Type...Length (in.) Std — — A 39 A 39
Alt — A 31 — —
Pulley Center Line Distance (in.) Std — — 14 7-15.5 14 7-15 5
Alt — 14 7-15 5 — —
Speed Change Per Full Turn of Std — — 80 79
Moveable Pulley Flange (rpm) Alt — 68 —
Movable Pulley Maximum Full Turns Std — — 5 5
From Closed Position Alt — 5 _ —
Factory Setting — Full Turns Open Std — — 3 3
Alt — 3 — —
Factory Speed Setting (rpm) std — — 1060 1230
Alt — 1110 — —
Fan Shaft Diameter at Pulley (in.) — 5/8 У2 Ув
EVAPORATOR COIL Enhanced Copper Tubes, Aluminum Doubie Wavy Fins, Acutroi'“ Feed Device
Rows...Fins/in. 2. 15 2.. 15 3.. 15 4...15
Total Face Area (sq ft) 4 17 55 55 5.5
FURNACE SECTION
Burner Orifice Diameter (in. ...drill size)*
Natural Gas — Std 113 33 113. 33/113 33/129 30 113. 33/113 33/129. 30 113 33/113 33/.129.30
Liquid Propane — Alt 089 43 .089.. 43/089 .43/.102 .38 089 43/089 43/102 38 089 43/089 43/102 38
Thermostat Heat Anticipator Setting (amps)
208/230/460 V
First Stage .14 .14 14 14
Second Stage -/14 -/-/14 -/-/14 -/-/14
Gas Input
First Stage 74,000/82,000 74,000/115,000/120,000 74,000/115,000/120,000 74,000/115,000/120,000
Second Stage -/115,000 -/-/150,000 -/-/150,000 -/-/150,000
Efficiency (Steady State) (%) 80 80 80 80
Temperature Rise Range 25-55/55-85 25-55/35-65/50-80 25-55/35-65/50-80 25-55/35-65/50-80
Manifold Pressure (in. wg)
Natural Gas — Std 35 35 35 3.5
Liquid Propane — Alt 3.5 3.5 3.5 3.5
Field Gas Connection Size (in.) .5 .5 .5 .5
HIGH-PRESSURE SWITCH (psig)t
Standard Compressor Internal Relief 625
Cutout 428
Reset (Auto.) 320
LOSS-OF-CHARGE/LOW-PRESSURE SWITCHf
(liquid Line) (psig)
Cutout
7 ± 3
Reset (Auto.) 22 ± 7
FREEZE PROTECTION THERMOSTATf
Opens (F) 30 ± 5
Closes (F) 45 ± 5
OUTDOOR-AIR INLET SCREENS Cieanabie
Qty...Size (in.) 1 ..20 X 24 X 1
RETURN-AIR FILTERS Throwaway
Qty...Size (in.) 2.. 16 X 25 X 2
LEGEND
Bhp — Brake Horsepower
*The 48LJD005-007 and 48LJE004 (74,000 Btuh) units have 2 burners The 48LJE005-007 and 48LJF004 (115,000 Btuh) units and
the 48LJF005-007 (150,000 Btuh) units have 3 burners
flndioates a FlOP (Factory-instalied Option) that requires a control kit.